I have a strange bug with your program since I started using it ( ver 1.95 ) its now at 1.99 and its still there
Basically ZEN currency is bugged : it always switches to it, even when its not remotely most profitable one.
So I have to always disable this currency or your program will not work properly. For example right now if I don't disable it I would earn 1.30 EUR but I disable it I earn 1.50 EUR with EXP

I hope you will fix this bug, because sometimes zen IS most profitable and I can't benefit from it, because I have it disabled always. I am using geforce 1060 3 gb if that matters